Combined hood and respirator



NW. 7, 1950 G. H. SCHAUWEKER 2,529,106

I COMBINED noon AND RESPIRATOR Filed Nov. 19', 1947 2 Sheets-Sheet 1INVENTOR. eaozee H. scHAuwEKER AT TO RNEY Nov. 7, 1950 s. H. SCHAUWEKERCOMBINED noon AND RESPIRATOR 2 Sheets-Sheet 2 Filed Nov. 19, 1947 R E Km R 0U TA mH C VS E G R O E G AIILRNEY Patented Nov. 7, 1950 2,529,106 7COMBINED noon AND RESPIRATOR George H. Schauweker, SouthbridgqiMass,assignor to American Optical Company, Southbridge, Mass., a voluntaryassociation of Massachusetts Application November 19, 1947, Serial No.786,914

This invention relates to a combined hood and respirator and hasparticular reference to hoods adaptable for attachment to respiratorsand having transparent windows located therein.

It is common practice in this field to provide respirators with faceshields and hoods. However, it is uncommon to find combined hoods andrespirators wherein the hoods may be interchangeable with a number ofrespirators and have means for removably securing in the front portionsthereof transparent eye shields or windows.

Therefore, it is an important object of this invention to provide animproved head 'portecting hood adaptable for and interchangeable withvarious types of respirators.

Another object is the provision of means in the hood for the removablesecurement of transparent eye shields or windows.

Another object is the provision of a hood shaped to cover the entirehead of a wearer and extending downwardly to drape over the wearersshoulders and having means for easily securing the hood to and detachingit from a respirator.

Other objects of the invention are to provide a hood of suchconstruction as to give maximum protection to the head of the wearer, toprovide inconspicuous and secure attachment of the hood to a respiratorand of a window to the hood, and to provide a hood of light weight andneat appearance.

Further objects are to provide in a manner as hereinafter set forth ahood adapted for attachment to a respirator which is simple in itsconstruction, durable, thoroughly efficient in its use, readilyattachable and detachable, and comparatively economical to manufacture.

Other objects and advantages of the invention will become apparent fromthe following description taken in connection with the accompanyingdrawings, in which:

Fig. 1 is a perspective view of a combined hood and respirator embodyingthe present invention;

Fig. 2 is a sectional view taken substantially on line 2--2 of Fig. 1;

Fig. 3 is a sectional view taken on line 3+3 of Fig. 1;

Fig. 4 is a sectional view taken on line i l of Fi 1;

Fig. 5 is a sectional view taken on line 5-5 of Fig. 4;

Fig. 6 is a vertical section taken through the fastening means to closethe opening in the front of the hood; v

Fig. 7 is a fragmentary front elevation of a 14 Claims. (Cl. 128141) 2preferred type of window mounted in the front of the hood; and

Figs. 8 and 9 are fragmentary front elevations of modified types ofwindows for the hood.

Referring more particularly to the drawings wherein like characters ofreference designate respirator including a face piece I2 shaped tosnugly fit over the lower portions of the wearers 4 piece 12.

face, covering entirely the nose and mouth, and being held securely inposition by a headband l3 connected to opposite sides of the face piecel2 and adapted to extend around the wearers head.

The usual inhalation means is provided on the face piece l2 in the nasalregion thereof and is illustrated asa cylindrical filter cartridge Idattached by suitable means to a plate-like supporting member 15 locatedon the front of the face The usual exhalation means is provided adjacentthe mouth of the wearer and is shown as a depending tubular member E6 onthe face piece l2. The walls of the face piece l'2 are pliable andshaped to conform generally to the shape of the wearers face and whendrawn snuglythereagainst by tightening the straps [3 the edges thereofprovide an air tight seal therearound. This will prevent foul air, gasesor the like from reaching the respiratory tract of the wearer. V

The respirator alone however does not protect the head of the wearerfrom foreign materials such as emery dust, sand or bits of metal whichmay be present in the air and which might cause injury to the faceand'particularly to the eyes of the wearer. Therefore a hood IE1 isprovided for attachment to the respirator and may be made of anysuitable fabric such as nylon, silk, canvas, or the like and may bechemically treated for waterproofing if desired. The hood H] comprises acap portion .ll having a substantially disc-shaped top portion l8 with adepending marginal strip l9 stitched thereto and a visor 2% attached onthe front thereof. The cap portion I1 is provided with an interiorperspiration absorbing liner 2! shaped substantially to the shape of thecap portion I] and having a depending marginal portion 22 stitched alongits lower edge to the outer portion 59, the lining 2| having a rear cutoutsection 23'the ends of which are joined by an elastic band 24 (Fig.4), the band being stitched or otherwise secured at each end to themarginal portion 22 'of'the liner and being provided as a 3. means forfitting the hood to various shapes and sizes of heads.

The visor 29 has a stiffener 25 formed of leather or the like locatedbetween the upper and lower coverings 2'6 and 21 respectively (Fig. 3),the upper covering 26 being secured at one end to the cap portion I9 andat its other end to one end of the lower covering '27 which in turn isconnected at its other end to the liner 22.

The remainder of the fabric hood i is formed in three sections, twoportions 28 and 29 forming a front panel, and a rear panel 30, thefrontal portions being stitched together or otherwise connectedcentrally of the hood below the visor 2E and adapted to drapedownwardly, each having an eye 3! located in its lower regions. Thefrontal portions 28 and29 are secured at their upper ends to the capportion l1 and may for strength have a reinforcing strap 32 locatedintegral with this seam. The portions 28 and 29 extend slightlyrearwardly and are connected to the rear panel 30 as indicated in Fig;1, the rear panel 35] also being connected at its upper end to the capportion H, and being adapted to drape downwardly to a point below theshoulders of the wearer. Thus, there is formed a hood completelycovering the head of the wearer, the sides of the hood near the seamsformed by connecting the frontal portions 28 and 29 to the rear panel 30having cut out portions to adapt the hood to properly fit over theshoulders of the wearer, and thereby providing downwardly drapedcoverings for the upper chest and back of the wearer.

A strap 33 formed of any suitable material is secured to the lower endof the rear portion 30, the strap having ends adapted to extend underthe arms of the wearer and to be tied to the eyes 3| located in thefrontal portions 28 and 29. Thus, the hood may be securely and snuglyheld in place.

The upper end of the panel formed b joining the frontal portions 28 and29 has a cut out por tion immediately below the visor 29. This cut outportion has a marginal reinforcement or frame 34 bordering the sides andlower edge thereof formed of leather or the like and secured by stitchesor other suitable means to the panel (Fig. 7), the frame. 34 beingsubstantially U-shaped in section to form a bezel adapted to receive awindow or eye shield 35formed of transparent flexible sheet materialsuch as synthetic plastic or the like, the window being adapted to beinserted from the top of the cut out portion and slid downwardly withinthe bezel or frame 34, and having been previously shaped to the contourof the cut out portion. Lateral strips 36 and 37 abut the upper edge ofthe window on the front and rear sides respectively (Fig. 3) and areconnected to the upper ends of the frame 34. The front strip 36 isprovided with a number of connection members 38 which are adapted tocooperate with other connection members '39 secured to a flap 40, theflap being secured by stitches or the like to a lateral tab 4| securedto the under side of the visor 20. Thus the window '35 may be mounted inthe frame 34 between thelateral strips 36 and 31, and the flap 4'eimaybe brought into overlapping relation with the upper edge of. the Window35 and frame 34 whereby the connection members 3-8 and 39 may befastened to secure the flap in position for sealing the entrance-,tortheframe 34 and retaining the window 35 in place.

It is to be understood however that the window 35 may be of varioustypes, sizes and shapes and may be formed of two separate panes 42 (Fig.8) with a frame '43 having a vertical centrally located strip 44 betweenthe panes 42, with entrances being provided at the outer sides of theframe with flaps 5'! covering the entrances in a manner similar to theflap in Fig. 7. Also, it may be desired to have the window 35 shaped todesired size and permanently secured to the hood ID as shown in Fig. 9,wherein the window 35 is secured directly to the hood by stitching,gluing or the like without the provision of a frame. the disadvantage ofbeing permanently mounted in the hood' and not removable andinterchangeable as is the preferred type shown in Fig. 7.

Centrally located near the lower edge of the window 35 is an opening 45and a pair of downwardly extending convergent straps 46 formed integralwith the lower edge of the frame 34 having their ends spaced below theopening 45 in a manner such as to provide a passageway into the opening.Oneof the straps 46 is provided near the end thereof with a male clipportion 41 of a snap fastener adapted to be connected with a femaleportion 48' carried'by the other strap46. Other means however. may beutilized to connect the ends of the straps 46 in overlapping relation.

The adjacent edges of the frontal portions 28' and 29 of the hoodmimmediately below the straps 46 and opening 45' areleft free and arenot stitched together as is the remaining portions of the edges asindicated by seam 49. The free edges are adapted to' overlap and areconnected by a snap fastener arrangement shown to best advantage inFigs. 6 and 8. Located near the free edge of frontal portion 29 is amale clip portion 56 of the snap fastener which is adapted to beconnected with afemale portion 5! carried by the adjacent free edge offrontal portion 28. Minute details of the snap fastener are' not deemednecessary in this specification since many suitable types of snapfasteners are available which are adaptable to this invention. Thereforeit is believed advisable only 'torelate briefly that as shown in Fig. 6'the female portion 5| of the fastener has an internal flange member 52adapted to secure the edge of the frontal portion 28 between themain'member 5! and said fiangemember 52 with .a piece of fabric.material or the like 53 secured to the portion 28 for reinforcementpurposes. The male portion 50 is secured in position on the edgeof'frontal'portion 29 by means of a washer-likemember 54 and an internalflange portion 55 between which the portion 29 and its correspondingreinforcement 56 are secured. This type of fastening means may be usedfor securing thefiaps 40 and 44 and connecting the strap members 46.

A pair of spaced openings are provided at each side of the hood lenearthe forward edges of the rear. panel 30 through which the headband i 3of the respirator H may extend 'as shown in Fig. 1, this. being done toprovide means for externally adjusting the headband? on the wearers head.after the hood has been secured to the respirator as well as toeliminate excess 7 looseness in the fit of the hood [0 around thewearers head.

In positioning the; hood onarespirator, the

front portion of the hood is'locate'd over the front However, the lattertype of window has,

respirator with the connecting member between the cartridge supportingmember and face piece I2 being positioned in the opening below thewindow 35, and the straps 46 extending below the face piece 12 and intothe space between the lower contour edge of the member l5 and the frontof the depending tubular exhalation Valve carrying member 16. With thehood in this position the straps 46 can be drawn together and the snapfastener closed to seal the opening 45 so that the hood cannot becomedisplaced.

Also drawing together the straps 46 will cause the front of the windowto bend and assume a cup-like convex shape, covering the face of thewearer. The opening formed at the upper end of seam 49 between the freeends of frontal portions 28 and 29 of the hood I!) is provided so thatthe depending tubular exhalation valve carrying member is may bepermitted to project outwardly below the straps 46, with the free endscarrying snap fastener portions 5|] and 5| being adapted to be drawninto lapping relation below the member IS so that the fastener parts and5| may be closed to seal the hood beneath the member Hi.

When it is desired to substitute one hood for another or to change ahood from one respirator to another respirator the straps 46 and snapfastener parts 50 and 5! are disconnected and the straps 46 drawn awayfrom one another to open the passageway into the, opening 45, and thehood may then be pulled upwardly to disconnect it from the respirator.When a window 35 has become scratched. pitted or otherwise defective itcan be easily withdrawn from the frame 34 after opening the flap 4!],and a replacement window easily inserted in its place.

Thus from the foregoing description it can be understood that a hood ofthis'type can be very economically made and efficient in its use and canalso be readily attached, removed and replaced. It is quite apparentthat when the hood is applied to a respirator in a manner ashereinbefore described no harmful material can gain access to the headof the wearer. By virtue of the elastic band 24 the hood can be adaptedto fit various sizes and shapes of heads thereby eliminating thenecessity of providing a number of hoods of different sizes. The snapfastener arrangements act efficiently in conjunction with theircooperative parts to maintain the hood in fixed relation to therespirator and to retain the window or eye band securely in place. Theentire device is extremely light in weight, neat in appearance andcomfortable in use and when not in use may be folded so as to occupy aminimum of space.

However it is to be understood that several changes or modifications maybe made and that although the construction of the respirator is hereindescribed as having a face piece l2 provided with forwardly projectioninhalation means and depending exhalation means, the hood may be usedwith several'diiferent types of respirators. It is also to be understoodthat although the description hereinbefore refers to a head bandattached to the sides of the respirator face piece and extending aroundthe head of the wearer, the head band may be of any of the known usedcommercial types connected by suitable means to secure the respirator tothe wearers head. The snap fasten-er arrangements shown are merelyillustrative of one convenient means of securing the straps 46,'freeedges of frontal portions 28 and 29, and flap 40,'but it is to beunderstood that other suitable mechanical means may be employed. I

Also, although the description of the hood refers mainly to the partsthereof as being connected together by stitching it is to be understoodthat other means may be employed forv thispurpose such as by the use ofadhesives.

It will be apparent that any changes and modifications may be made inthe details of construction and arrangement of parts shown and describedwithout departing from the spirit of the invention as expressed in theaccompanying claims. Therefore, it is to be understood that all matterset forth or shown in the accompanying drawings is to be interpreted asillustrative and not in a limiting sense.

Having described my invention, Iclaim:

l. A protective covering for the head comprising a hood having a capportion with a forwardly projecting visor, a drape portion secured toand depending from the cap portion and peripheral edge of the visor, anda window located in the front of said drape portion comprising a bezelfixedly secured in said drape portion beneath said visor, saidperipheral edge embodying a channeled portion for receiving the adjacentedge of a transparent member and having a portion of its peripheralmargin open for the insertion of said transparent member, and a flapmember adapted to seal the marginal opening in the bezel.

2. A protective covering for the head comprising a hood having a capportion with a forwardly projecting visor, an elastic band memberprovided in the cap portion to adjust the cap portion to the head of thewearer, a drape portion secured to and depending from the cap portionand peripheral edge of the visor, and a window located in the front ofsaid drape portion comprising a bezel fixedly secured in said drapeportion beneath said visor, said bezel embodying a channeled portion forreceiving the edge of a transparent member and having its upperperipheral margin open for the insertion of, said transparent member,and a flap member secured to the forward edge of said visor and havingmeans for connection with the upper marginal portion of the, bezel toseal the opening in said marginal portion of the bezel.

3. A protective covering for the head comprising a hood having a capportion adapted to be supported on the head of the wearer, a visorportion secured to the front of said cap portion and having stiffeningmeans associated therewith, an elastic band member provided'in the capportion to adjust the cap portion to the head of the wearer, a drapeportion secured to and depending from the cap portion and edge of thevisor, and a window located in the front of said drape portioncomprising a bezel fixedly secured in said drape portion beneath saidvisor, said bezel having a portion of its peripheral margin open for theinsertion of a transparent member, and a flap member carried by thedrape portion for connection with the marginal portion of the bezel toseal the marginal opening in the bezel.

4. A head protecting hood comprising a cap portion having a visor, adrape portion attached to and depending from the lower edges of said capportion and Visor, a window located in the front of said drape portionbeneath the visor, and means for attachment of the hood to a respiratorconsisting of an opening formed in the drape portion through whichportionsof the respirator iriaytprojech theropening'i-having convergentstrap.

members formed on theropposed sidesrthereof', the=:strap members beingadapted to: be drawn into lapping relation adjacent theprojectingportion's' ofv the respirator to secure: the hood to. the respirator.

5. A head. protecting hood for use with respiraitors. comprising a capportion'adapted to be supportedxupon thehead of the wearer; a visorportion formed integral with said cap portion and having stiffeningmeans'associated' therewith, a drapezportion'idepending from said capandxvisor portions and having a window: located in thefront;thereof,.and meansfor attachment of the hood, to arespiratorconsisting: of an opening formed in the 'drape portion through whichportions of: the respirator may project, the opening having'convergentstrap members formed on the opposedzsides. thereof, the'strap membersbeing adaptedto be drawn into lapping. relation adjacentthe projectingportion of the respirator to secure the hoodto the respirator;

6;:Aihead protecting hoodforuse with respirators comprising a capportion adapted to be supportedzuponithehead' of the wearer, a visorportion formed'integral'with' said. cap portion andh'aVingIstiITeningJmeanswassociated therewith, an elasticibandmemberprovided in the cap portion to adjust. thecap portion to the headof the wearer, a drape portion depending from said cap and visorportions and having a ..windo.W located in. the frontlthereof', andmeans forattachment ofv the hood to a'respirator consisting of anopening formed in the drape portion through which portions of therespirator may project, the openinghaving convergent strap membersformed on the opposed sides thereof, the strap membersb'eing adaptedtoib'e drawn into lapping relation adjacent the projecting portions ofthe respirator to secure thehood 'to .the respirator.

7. A protecting hood adapted to cover the head of awearer and having anopening formed in the front'thereof; a'bezel bordering the opening andhaving a marginalflportion thereof open for insertion. of atransparentimember', a flap member: adapted" to cover the .open portionof said bezel,-..a-1 second: opening beneath the first opening for.reception of aportion. of a respiratory device to which the hood is tobe attached, and straps formed on the opposed sides. of saidsecond'opening forattachment of the hood to said device.

8. In a combined hood and; respirator, a face pieceadaptedito fit'snugly'over the face ofthe wearer and'carrying spaced inhalationandexhalationmeans, and a.v cap member adjustably supported upon the headof thewearer and having 'avisor and a drape'member, the drape member coveringentirelythe head'ofthe wearer and having a. windowlocated in the frontthereof beneath said visor; an opening being-provided in the" front ofthe drape member beneath said window for projection of said exhalationand inhalation'means, the opening having convergent strap membersformedonthe opposed sides thereof and adapted to be drawntogetherbetween the exhalation and inhalation means to secure the hoodto the-respirator.

. 9; Ina combined 'hood' and respirator, the combination of 'aface pieceadapted to fit snugly over'the nose and mouth of 'the wearer, inhalationmeans located on the front of the face piece,

exhalation means located on theface piece in the lower regions thereof,a cap member-adapted to be supported uponthe head of'the wearer andhaving: a 1.forwardly projecting" visor,- an elastic;

band member provided inithe cap memberato ad? just the hood'rto the headof thewearer," adrape:-

portion depending from' sa-id capz-and'visor over the entireuheadz: ofthe; wearer and covering: a major portion: of the respirator and having.means for securing. the drape: portion beneath the-arms of the wearer, aremovable window lo-- cated-in the'front of the drape portion beneathsaid'visor, and meanszifor-vattaching the.hoodto. the respiratorcomprising; anopening: formed in: the drape portion beneath thewindowthrough which the said inhalation and exhalation means may project, theopening having; convergent strap members formed on the-opposed sidesthere of, the'strapmembers beingadapted to be drawn into'lappingrelation'betwe'en the exhalation and inhalation means to secure thehood. to the respirator.

10. A combined. head protecting hood and respirator'comprisingacapportion, a drape por--- tion depending from said cap portion, a windowopening; located in the front of saiddrape por. tion beneath the capportion; a window insaid opening, a respirator opening formed in thedrape portion beneath the window opening and through'which aportion-of arespirator may extend, said portion of thev drape. having,- therespirator opening therein having. strap. members formed adjacent thelowersidesot said opening, said. strap members being adapted to besecured in overlapping. relation with each other;beneath the portion ofvthe respirator which extends through the respirator opening to secure:the hood to.. said. respirator.

11. A. head protecting; hood for use wvith respirators-comprising a capportion adapted to be supported'upon the. head of the wearer, a drapeportion. depending fromsaid cap portion and having a window openinglocated in-the frontthereof, a windowof transparent-flexible sheetmaterial in said Window opening, and means for attachment ofthehood to arespirator consisting of a: second opening formed in the drape portionbeneath the window opening and through which aportion of the respiratormay, project; said second'opening having: strap members-formed adjacentthe lowerside edges thereof, said strap membersbeing adapted tobe-secured in overlapping; relation beneath the projecting portion ofthe respirator when assembled therewith to secure-thehood totherrespira-tor and :being adapted to cause the flexible window to cupoutwardly-for clearance with the face of the wearer.

12.: In acombi-nedhood and-respirator, a face piece adapted to fitsnugly over the face ofthe wearer and carrying spaced inhalation andexhalation means, and: ai cap member adj usta-bly supported uponlthe-headrof thewearer and -having a drape member" extending downwardlythereof, the drapemembercovering entirely the headof the wearer: andhavinga windowopen-v ing'therein, a window in -said'window opening, anda secondopeningr in said draper member beneath said-windowopening-forprojection of said exhalation and inhalation means: there through, said'second opening having-convergent strap members formed on the opposedlower sides lyoverthe nose and :mouth of the wearer, inhalathereof andadapted to be drawn and secured tion means located on the front of theface piece, exhalation means located on the face piece in the lowerregions thereof, a cap member adapted to be supported upon the head ofthe wearer, adjustable means in the cap member to adjust the hood to thehead of the wearer, a drape portion depending from said cap over theentire head of the wearer and covering a major portion of the shouldersand having means extending beneath the arms of the wearer to secure thedrape'portion to the shoulders, a window opening in the drape portion, aremovable window located in the window opening, and means for attachingthe hood to the respirator comprising a second opening beneath thewindow 1 opening and through which the said inhalation and exhalationmeans may project, said second opening having convergent strap membersformed on the opposed lower sides thereof and being adapted to be drawnand secured together 3 between the exhalation and inhalation means tosecure the hood to the respirator.

14. A protecting hood adapted to cover the entire head of the wearer andhaving an opening formed in the front thereof, a channelled portionbordering the opening and having a portion thereof open for theinsertion of a transparent member, means adapted to cover the 10 openportion of said channelled portion to removably secure the transparentmember therein, and a second opening beneath the first opening for thereception of a respiratory device to which the hood may be attached, andconvergent straps formed on the opposed sides of said second opening forattachment of the hood to said device.

GEORGE H. SCHAU'WEKER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,095,089 Dinn Apr. 28, 19141,331,701 Fendelman Feb. 24, 1920 1,583,017 Sherman May 4, 19261,590,668 Bello June 29, 1926 2,105,028 Dickhofi Jan. 11, 1938 2,269,461Lehmberg Jan. 13, 1942 2,435,167 Stetson Jan. 27, 1948 FOREIGN PATENTSNumber Country Date 510,491 Great Britain Aug. 2, 1939

